Silanes & Organosilanes Available to Source

Methyltriacetoxysilane

CAS 4253-34-3 · MF C7H12O6Si · MW 220.25 g/mol

Methyltriacetoxysilane (CAS 4253-34-3) is an organosilane compound with molecular formula C7H12O6Si that functions as an adhesion promoter and coupling agent. This silane derivative is utilized in coatings & construction, industrial manufacturing, and plastics & polymers applications where enhanced bonding between organic and inorganic substrates is required.

SDS / TDS Download
CAS Number
4253-34-3
Molecular Formula
C7H12O6Si
Molecular Weight
220.25 g/mol
Material Family
Silanes & Organosilanes
Physical Properties
vapor_pressure
0.2 [mmHg]
GHS / SDS Safety Danger
Irritant Health Hazard Corrosive
  • H314 (85.2%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
  • H335 (13.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
  • H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
  • H302: Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (20.7%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H318 (23%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H319 (20.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H302 (73.6%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Chemical Identity
CAS Number4253-34-3
IUPAC Name[diacetyloxy(methyl)silyl] acetate
InChI KeyTVJPBVNWVPUZBM-UHFFFAOYSA-N
PubChem CID 77929
Synonyms & Trade Names
Methyltriacetoxysilane Methylsilanetriyl triacetate Silanetriol, methyl-, triacetate triacetoxy(methylsilane) Silanetriol, 1-methyl-, 1,1,1-triacetate BRN 1788668 DTXCID507565 4-04-00-04208 (Beilstein Handbook Reference) CM8980 Silane, methyltriacetoxy RefChem:158342 Silanetriol, methyl, triacetate Silanetriol, 1methyl, 1,1,1triacetate
Full Description

Methyltriacetoxysilane (CAS 4253-34-3) is an organosilane compound with molecular formula C7H12O6Si that functions as an adhesion promoter and coupling agent. This silane derivative is utilized in coatings & construction, industrial manufacturing, and plastics & polymers applications where enhanced bonding between organic and inorganic substrates is required.